Status report on an 171Yb optical lattice clock at NMIJ

摘要

We report the status of our ^{171Yb optical lattice clock. The frequency stability of the Yb lattice clock is $1imes10^{-14}(au$/s)-1/2 where $au$ is an averaging time. The systematic uncertainty of the Yb lattice clock is evaluated to be $3.6imes10^{-16}$. Towards contribution to the International Atomic Time, some contrivances are incorporated in order for the Yb lattice clock to run for a long term. For example, automatic relocking schemes are recently prepared for phase locking and injection locking.}